224 



BULLETIN OF THE UNIVERSITY OF WISCONSIN, 



FONTINALIS, p. 268.1 

 I. Leaves of branches unlike stem leaves {dimorphous). 



Branch leaves 8-16 times as long as broad 

 Branch leaves 2.5-5 times as long as broad 



F. chrysophylla, S83. 

 F. Kindbergii," 381. 



II. Leaves homomorphous.^ 



A. Leaf cells rhomhic-hexagonal {1: 6 or less). 



Plants shining with golden or copper luster. 

 Stem robust, little branched . F. antipyretica gigantea,* 269. 



Stem soft, much branched .... F. Californica, 269. 

 Plants dull, yellowish to dirty green. 



Leaves with one edge reflexed near base . F. antipyretica, 268. 

 Leaves with margin plane. 



Female flowers abundant, in most leaf axils F. Novae- Angliae,^ 270. 



Female flowers rare, at base of stems . . F. biformis, 270. 



B Leaf cells long linear {1 : 7-30). 



I. Leaves auricled. 



[F. Xescurii and F. Neo~Mexicana may be sought here.] 



Alar cells very large ..... 

 Alar cells moderately enlarged. 

 Leaves inflexed on the borders. 



Gradually acuminate .... 

 Cucullate and terminated by an acumen 

 Obtuse, neither acuminate nor cucullate 

 Leaves plane on the borders, acuminate. 



Transverse bars of the endostome complete . 

 Transverse bars of the endostome incomplete 



F. flaccida, 



F, dichelymoides, 395. 



F. involuta, 389. 



F. Cardoti, 388. 



F. tenella, 391. 

 . F. nitida, 390. 



1 Revised by Cardot, Mem. Soc. Nat. d. Sci. Nat. et Math, de Cherbourg 28: 1-152. 1892. 



^ It has not been deemed advisable to maintain F, Howellii as a distinct species. 

 Following the suggestion of Cardot, Monog. Fontin. 67, it is ranked as a variety of 

 F. Kindbergii, See also Appendix, no. 382, 



^ In F. biformis the summer leaves are unlike the vernal, so that specimens collected 

 just as the vernal are falling might deceive. 



* See Appendix, nos. 377, 378. 



•* See Appendix, nos. 386, 387, 



